Windmill-gearing.



G. W. ROBBRTS. WINDMILL GBARING.

APPLIUATION rum) 10.23. 1911.

1,012,916. Patented Dec.26, 1911.

UNI

WITNESSES (1. IQQJLA/ m jg $141M XL UNITED STATES PATENT OFFICE.

GEORGE W. ROBERTS, 0F MEN-ARDVILLE|, TEXAS.

WIN DMILL- GEARING.

, Specification of Letters Patent.

Patented Doc. 26, 1911.

Application filed August 23, 1911. Serial No. 645,516.

"scription thereof.

The object of my invention is to provide gearing for transmitting motion from the wind wheel to the pump rod which will not be subject to oblique strains, and besides this' important advantage which results in a bailanced condition of the parts and the saving of wear, and the fuller utilization of the power developed, I aln able to produce a very simple mechanism.

My invention, therefore, consists in the wind mill gearing constructed substantially as hereinafter Specified and claimed.

in the. act-om ian ins: drawin s the fi ure l b t" I being secured to a tubular upright 11 .that

rises from the turirtahle and through which passes the plunger or piston rod 12, wpieh danger or rod is pivotally connected lever 13 that is pivoted at one end to the top of the frame work It) at one side thereof, and at its other end pivotally connected to the upper end of a pitman it which is oi split. or bifurcated form and straddles a gear wheel 15 to which the pitmau is pivotally connected eccentrieally at opposite sides of said gear wheel, so that there is a direct and balanced C(H'UlttfilOl'l lwtween the gear wheel 15 and lever [3, which results in the subjection of the parts to strains only in direct; lines, with no sidewisc or oblique tendency, and hence, such parts as the pitman 14, the lever 13 and the pump rod or plunger 12, have no oblique strains thereon.

The gear wheel 15 has no shaft, and, of

course, can have none in view of the manner of the connection of the pitman 14 therewith, and to support it. and retain it in its position I employ a number of pinions 16 (as shown four, although the number may be varied) that are suitably spaced apart 7 around its peripher and which are journaled in hearin s on the frame work 10. The pinions prefdrably have flanges on their opposite sides that overhang the sides of the gear wheel 15 to retain itfrom sidewise movement, and, of course, the same result can be secured by Hanging the gear wheel I 0 o o I and having it overlap the'sidos of the pmions. One of the pinions, and preferably an upper one, is thedriving pinion, it bein mounted on the wind wheel shaft 17. prefer to use an upper pinion as the driving pinion because the weight and strain due to the lifting action of the pump piston is thrown downward by downward pressure upon the gear 15 and falls upon the several lowermost pinions. It will be perceived that all the pinions exceptthe one mounted on the wind wheel shaft 17 are idlers and in effect rolling supports for the gear wheel 15, and the object in using pinions or small wheels with teeth is to secure a smooth easy running motion of the gear wheel 15.

Having thus described my invention what l claim isl. in a gearing for wind mills, the combination of a wind wheel shaft. :1 pit'man, a part to be operated by the pitman, a wheel yea red to said shaft with which the pitman is connected on opposite sides. and a series of rotatable elements engaging said wheel outside of the pivotal connection of the pitnian therewith.

:3. in a gearing: for wind mills, the combillntiml of a wind wheel shaft, a gear wheel, a series of piuions meshing with said gear wheel and constituting bearings therefor, a

iitman straddlin said ear wheel and )l\'- l 1- otaltr connected therewith, and an element with wlneh said pitman is connected. 4

3. In a gearing for wind mills, the combnation of a wind wheel shaft, 9, gear wheel, nee-ted therewith, and an element with a gear connect-ion between said wheel and which said pitman is conneeted. 10 said shaft, a series of pinions meshing with In testimony that I claim the foregoing I said gear wheel and constituting bearings have hereunto set my hand.

therefor, there being overlapping portions GEORGE W. ROBERTS. on said pi'nions and gear to restraln the gear WVitnesses: from sidewise movement, a pitman strad- J. D. Seances,

dling said gear wheel and pivotally con- T. A. 'ScRUees. 

